Lenovo 243858U Laptop User Manual


 
DANGER
Connect and disconnect cables as described in the following procedures when installing, moving,
or opening covers on this product or attached devices.
To connect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlets.
5. Turn devices ON.
To disconnect:
1. Turn everything OFF.
2. First, remove power cords from outlets.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
The power cord must be disconnected from the wall outlet or receptacle before installing all other
electrical cables connected to the computer.
The power cord may be reconnected to the wall outlet or receptacle only after all other electrical
cables have been connected to the computer.
Laser compliance statement
CAUTION:
When laser products (such as CD-ROMs, DVD drives, ber optic devices, or transmitters) are
installed, note the following:
Do not remove the covers. Removing the covers of the laser product could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the device.
Use of controls or adjustments or performance of procedures other than those specied herein
might result in hazardous radiation exposure.
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following:
Laser radiation when open. Do not stare into the beam, do not view directly with optical
instruments, and avoid direct exposure to the beam.
Liquid crystal display (LCD) notice
CAUTION:
The LCD is made of glass, and rough handling or dropping the computer can cause the LCD to break.
If the LCD breaks and the internal uid gets into your eyes or on your hands, immediately wash the
affected areas with water for at least 15 minutes; if any symptoms are present after washing, get
medical care.
Note: For products with mercury-containing uorescent lamps (for example, non-LED), the uorescent lamp
in the liquid crystal display (LCD) contains mercury; dispose of according to local, state, or federal laws.
Using headphones or earphones
CAUTION:
Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of
© Copyright Lenovo 2012
xiii